CUSTOM_ELEMENTS_SCHEMA vs NO_ERRORS_SCHEMA in Angular8

CUSTOM_ELEMENTS_SCHEMA vs NO_ERRORS_SCHEMA in Angular8.md

Including the CUSTOM_ELEMENTS_SCHEMA in the module allows the use of the web components in the HTML markup without the compiler producing errors

• Defines a schema that allows an NgModule to contain the following:
• • Non-Angular elements named with dash case (-).
• • Element properties named with dash case (-).
• Dash case is the naming convention for custom elements.

https://angular.io/api/core/CUSTOM_ELEMENTS_SCHEMA

The NO_ERRORS_SCHEMA tells the Angular compiler to ignore unrecognized elements and attributes.

• Defines a schema that allows any property on any element.

https://angular.io/guide/testing#no_errors_schema https://angular.io/api/core/NO_ERRORS_SCHEMA